Tachograph



FIG. 1 is a front view of a tachograph showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines shown are included for the purpose of illustrating the unclaimed portions of the article, and forms no part of the claimed design. 

CLAIM The ornamental design for a tachograph, as shown and described. 